I made this for my Ord Bot Hadron 3d printer. I printed the 80mm brackets. The brackets seem a little bit flimsy even for ABS, but they still work like they should. The legs just snap right into place on the edges of the board which is great.One corner is having trouble clicking into place because of of the plastic around nearby connectors. I am using a 12v brushless 80mm fan which draws only 0.12 amps and runs like the wind...literally!!! It is a vast improvement considering I only had a small 30 or 40mm fan before which didn't even cover the whole board and was pretty lousy. This fan will spawn tornadoes and typhoons if you are not careful!